Existence of positive solutions for singular eigenvalue problems

Meiqiang Feng, Weigao Ge
Abstract:
In this paper, we discuss the existence, nonexistence,
and multiplicity of positive solutions for a class of singular
eigenvalue problems. Some of our theorems are new, while others
extend earlier results obtained by Zhang and Kong [12].
The interesting point is that the authors obtain the relation
between the existence of solutions and the parameter
.
The arguments are based on the fixed point index theory and
the upper and lower solutions method.